There are total 18 hours or 1080 minutes from 7am to 1am. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 3AM to 4AM | 8PM to 9AM | 8PM to 4AM |
| 3PM to 1PM | 3PM to 1AM | 1PM to 8AM |
| 2AM to 2PM | 8AM to 4AM | 4PM to 6PM |
| 7PM to 12PM | 9AM to 9PM | 6PM to 7PM |
| 11AM to 3AM | 12PM to 4PM | 11AM to 3PM |
| 7PM to 8PM | 4PM to 10PM | 7PM to 2AM |
